#include<stdio.h>
int main(){
	int n;
	scanf("%d",&n);
	if(n>=1&&n<=7){
		switch(n){
		case 1:printf("Monday\n");break;
        case 2:printf("Tuesday\n");break;
        case 3:printf("Wednesday\n");break;
        case 4:printf("Thursday\n");break;
        case 5:printf("Friday\n");break;
        case 6:printf("Saturday\n");break;
        case 7:printf("Sunday\n");break;
		}
	}
	else
	printf("Input Error");
}
